车辆荷载下长山大桥斜拉索以及塔梁墩连接处疲劳分析

刘扬; 杨刚*; 马宁; 杨可

doi:10.16411/j.cnki.issn1006-7736.2015.02.021

大连海事大学学报 >

2015 , Vol. 41 >Issue 2: 116 - 122

DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2015.02.021

交通运输工程

车辆荷载下长山大桥斜拉索以及塔梁墩连接处疲劳分析

刘扬 ,
杨刚^* ,
马宁 ,
杨可

展开

（大连海事大学道路与桥梁工程研究所，辽宁大连 116026 ）

刘扬（1978-)，男，博士生.

收稿日期: 2014-08-29

修回日期: 2014-11-10

网络出版日期: 2015-06-07

基金资助

中央高校基本科研业务费专项资金资助项目(3132014326);大连市交通科技项目

收起

Fatigue life analysis for stay cables and the consolidation of the tower girder and pier of Changshan bridge under the vehicle load

LIU Yang ,
YANG Gang^* ,
MA Ning ,
YANG Ke

Expand

（Highway and Bridge Institute，Dalian Maritime University，Dalian 116026,China)

Received date: 2014-08-29

Revised date: 2014-11-10

Online published: 2015-06-07

Fold

摘要

根据S-N曲线和线性累积疲劳损伤准则等对长山大桥斜拉索进行车载下疲劳分析和寿命评估.利用ANSYS编制程序绘制塔梁墩固结处的位移影响线，找出荷载最不利位置，然后，结合疲劳分析软件FE-SAFE计算塔梁墩固结处的疲劳寿命. 分析结果表明，长山大桥塔梁墩固结处在车辆荷载反复作用下最容易发生疲劳破坏，其内索区斜拉索在车辆荷载反复作用下寿命要低于边索区，这为长山大桥日后检修维护等工作提供了一定依据.

关键词： 斜拉索; 疲劳分析; 寿命评估; S-N曲线; 疲劳损伤累积

本文引用格式

刘扬 , 杨刚^* , 马宁 , 杨可 . 车辆荷载下长山大桥斜拉索以及塔梁墩连接处疲劳分析[J]. 大连海事大学学报, 2015 , 41(2) : 116 -122 . DOI: 10.16411/j.cnki.issn1006-7736.2015.02.021

Abstract

The fatigue analysis and life evaluation of Changshan cable stayed bridge under vehicle loads were completed according to the S-N curve and linear cumulative damage rule. The influence line of displacement of fixed pier-pylon-beam was drawn by using ANSYS to find out the most disadvantageous load position, and the fatigue life of fixed pier-pylon-beam was calculated by combining the result with the fatigue analysis software FE-SAFE. Results show that fixed pier-pylon-beam of Changshan bridge is prone to fatigue failure, the fatigue life of internal rope zone of the bridge is lower than the edge cable, which provides a reference for future maintenance of Changsha bridge.

Key words： stay cables; fatigue analysis; life assessment; S-N curve; fatigue damage accumulation

参考文献

[1]陈艾荣, 陈华婷, 项海帆．大跨桥梁风致抖振疲劳可靠度近似分析及寿命估算[J]. 土木工程学报, 1999, 32 (3):28-33.

CHEN Ai-rong, CHEN Hua-ting, XIANG Hai-fan. Wind-induced buffeting fatigue reliability analysis and life estimation of long-span bridge[J] . China Civil Engineering Journal，1999，32(3)：28-33.(in Chinese)

[2]卢伟, 强士中, 蒋永林．斜拉索抖振疲劳可靠度分析[J]. 中国公路学报, 2001,14(4) :63-66.

LU Wei，QIANG Shi-zhong，JIANG Yong-lin. Buffeting fatigue reliability analysis of cable-stayed bridge [J]. China Journal of Highway and Transport，2001，14(4)：63-66.(in Chinese)

[3]英国标准BS5400（1978-1983版）钢桥、混凝土桥及结合桥（第十篇: 疲劳设计使用规则）[S].成都:西南交通大学出版社,1987.

[4]ASCE. Committee on fatigue and fracture reliability of the committee on structural safety and reliability of the structural division fatigue reliability 1-4[J].Journal of the Structural Engineering, ASCE,1982,108(1):3-88.
[5]RAJU S K, MOSES F, SCHILLING C G. Reliability calibration of fatigue evaluation and design procedures[J]. Journal of Structural Engineering, 1990,116(5):1356-1369.

[6]AASHTO L. LRFD bridge design specifications[M]. Washington DC: American Association of State Highway and Transportation Officials, 1998.

[7]中华人民共和国交通部.JTJ025—86公路桥涵钢结构及木结构设计规范[S].北京:人民交通出版社,1988．

[8]郑万生, 唐光武,郑罡.大跨度斜拉桥拉索疲劳参数分析中移动荷载的选定[J].公路交通技术, 2010(5): 52-55.

ZHENG Wan-shan, TANG Guang-wu，ZHENG Gang. Selection of moving loads in design of cable fatigue parameters in large-span cable-stayed bridge [J]. Technology of Highway and Transport，2010 (5)：52-55.(in Chinese)

[9] 王文涛.斜拉桥换索工程[M].北京:人民交通出版社,1997.

[10]黄培彦,赵琛,陈翠峰.随机载荷下碳纤维薄板增强 RC 梁试验研究[J].实验力学,2006,21(4):491-496.

HUANG Pei-yan, ZHAO Chen，CHEN Cui-feng. Research on RC beams strengthened with carbon fiber laminate under random load[J].Journal of Experimental Mech Anics，2006，21(4):491-496.(in Chinese)

Options

文章导航

模态框（Modal）标题

摘要

本文引用格式

Abstract

参考文献